Find the strengh of currect that deposited 0.777 g of matallic copper in half an hour in a copper voltameter .The atomic mass of copper is 63 and ECE of hydrogen is `0.00001036 g C^(-1)`
1 Answers
Talk Doctor Online in Bissoy App
A steady current of `10.0` A is maintained in a copper voltameter . Calculate the time required to deposit `2.5` g of copper . Relative atomic mass of
`because m`=Zit and `Z=(E)/(F)=(M)/(pF) therefore m=(Mit)/(pF)` where m=2.5g. `F=96500C//"mol",M=63.5,i=10A` and p=2 `therefore t=(mpF)/(Mi)=(2.5xx2xx96500)/( 63.5xx10)= 760s`
2 Answers 1 views
In copper voltameter 20mg of copper is deposited on the cathode of the voltameter by `0.15-wedge` current in 6minutes 42sec. Calculate (i) amount of e
Correct Answer - `(i)96500C, (ii)1.6xx10^(-19)C`
2 Answers 1 views
A current passes throgugh a copper voltameter and water voltameter I series. How much hydrogen at `27^(@)C` and pressure of 100cm of mercury wil be li
Correct Answer - `5.15xx10^(-3)m^(3)`
2 Answers 1 views
A current o f1.5 A is passed through a silver voltameter for 35 minutes .The mass of silver deposited during electrolysis is 3.528 g Calculate the ele
Correct Answer - 0.00112g/c
2 Answers 1 views
How long will it take to deposit eleectrolyically voltsmeter127 g of copper on the copper on the cathode of a copper voltameter by a currect of 50 A?
Correct Answer - 7711 s
2 Answers 1 views
How many grams of chorine can be produced by the eletrolysis of molten NaCl with a currect of a A or 15 min utes .ECE of chlorine `=0.367xx10^(-7) kg
Correct Answer - 0.3303 g
2 Answers 1 views
Asilver and a copper voltameter are connected in parallel across a 6 V battery of neglible internal resistance .In half , 1g of copper and 2 g of silv
Correct Answer - 16.086 W
2 Answers 1 views
A currect passes through an a coil of wire `200 Omega` immerseresed ina vessel containg 2 kg of water and then sent through a copper voltameter .It is
Correct Answer - `3.7xx10^(-2) g`
2 Answers 1 views
A currect of 0.2 A is passed throgh a silver voltameter for 3 hours and 20 minutes. Find the mass of silver liberated ECE of hydrogen `=0.0000105 gC^(
Correct Answer - 2939 .3 g
2 Answers 1 views
A silver and copper voltameter are connected in series with 12 V battery of negligible resistance .It is found that 0.806 g of silver is deposited in
Correct Answer - (i)0.475 g(ii) 8.64KJ
2 Answers 1 views